Method and apparatus for gasifying with a fluidized bed gasifier

Details Method and apparatus for gasifying with a fluidized bed gasifier Method and apparatus for gasifying with a fluidized bed gasifier

1980-03-20

1981-11-17

Bashore, S. Leon

Gas: heating and illuminating

Generators

Cupola

48 63, 48197R, 48206, 201 9, 201 31, 422142, C10J 368

Patent

active

043009140

ABSTRACT:
An integral gasifier including a pretreater section and a gasifier section separated by a distribution grid is defined by a single vessel. The pretreater section pretreats coal or other carbon-containing material to be gasified to prevent caking and agglomeration of the coal in the gasifier. The level of the coal bed of the pretreater section and thus the holding or residence time in said bed is selectively regulated by the amount of pretreated coal which is lifted up a lift pipe into the gasifier section. Thus, the holding time in the pretreater section can be varied according to the amount of pretreat necessary for the particular coal to be gasified.

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